Answer:
4,494$.
Step-by-step explanation:
take the 3,800$ and add 200$=4,000$ +5% which is 5/100=4,200$ add 7% which is 7/100=4,494$.
why not add 5 and 7=12 and then use it to make the total price? because 12% is different. how? if you add 12% to 4,000$ it will equal to a different number which is 4,480$.